Carbon remover



magnesium either in ribbon form may be incorporated into the m xture in order to afford a more prompt action.

Patented Nov. 13,1923

UNITED STATES h F i Q E o OF CHICAGO, ILLINOIS.

CARBON REMOVER.

No Drawing.

7 '0 all whom it may concern.

Be it known that we, 'lViLLiAM F. BRAND and ERNEST O. QUARNsTRoM, citizens of the United States. residin at Chicago, in the county of (00k and s iate of Illinois, have invented certain new and useful Improvements in Carbon Removers; and we do hereby declare the followin to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it appertain's to make and use the same.

This invention relates to improvements in carbon removers, especially for internal combustion engines, and is particularly adapted for use with automobile engines or the like.

One of the important objects of this invention is the provision of a carbon remover in solid form which can be readily inserted into the cylinder of an automobile engine andwhichis composed of suchingredients that, under the conditions of heat and pressure usually obtaining in the operation of such motor. they will unite with the incrusted carbon deposits on the pistons, walls and valves of the engine and operate to dissolve the same by combining chemically therewith to form gases which are excluded in the exhaust.

Another object of the invention is the provision of a carbon remover-for internal combustion engines which, in operation, shall act to break up and remove by abrasion those particles of carbon which adhere stubbornly to parts of the engine.

Other and further important objects of the invention will be apparent from the disclosures in the following specification:

The composition is as follows:

he ingredients of which this improved carbon remover is composed are:

. 7 Parts. Sulphur lto 3 Zinc oxide; 1 to3 Zinc metal 1 to 3 Zinc sulphate Trace.

In addition to the above, an oxidizing agent such as a peroxide or a chlorate may be used, and also a small quantity of metallic or powdered In making up the mixture the sulphur,

Application filed July 11,

product of this invention parting from 1922. Serial No. 574,289.

is melted in an iron and then mixed with which the zinc sulstrips about 6 have been rolled into the composition, which adheres to the same on cooling and forms compact masses of a size suiiiciently-small to be introduced into an engine cylinder through the spark plug opening. If desired. some other easily oxidizable metal may be used in place of zinc.

It is probable that under. the conditions of heat and pressure existing when the engine is operated, that the oxygen of the zinc oxide combines with carbon and forms carbon monoxide. which then burns. The metallic zinc either burns to oxide, which then unites with the carbon, or is exhausted as zinc dust during the operation of the motor. Further, the sulphur is probably vaporized and then combines with the heated or glowing carbon to form carbon disulphide, which then burns to carbon dioxide and sulphur dioxide.

After one of these pellets has been my serted into the cylinder same operated for a short time it is found that the interior thereof is entirely free from carbon or oily deposits, which also applies to the spark plugs and to the valves.

It. will be seen that by use of the composition of this invention an engine cylinder may be quickly and thoroughly cleaned without necessitating the dismantling of Also, that by the use of a dry composition of this sort the possibility of gumming up the cylinder, piston rings and valves is avoided, which ordinarily occurs in the use of liquid carbon removers. The products of decomposition of the improved are either blown out in the form' of dust or eliminated as burned gases.

We are aware that many changes may be made in the ingredients used and various details of the proportions changed Without dethe rinciple of this invention, and we there ore do not purpose limiting the patent granted hereon otherwise than as necessitated by the prior art.

e claim as our invention: 1, A carbon remover comprising in commetallic zinc,

of an engine and the.

15 bination sulphur, 1 to bination sulphur, zinc oxide, metallic zinc and zinc sulphate.

2. A carbon remover comprising in combination sulphur. 1 to 3 parts; zinc oxide. 1 to 3' parts; metallic zinc, 1 to 3 parts; and a trace of zinc sulphate.

3. A carbon remover comprising in combination sulphur, 1 part;

zinc oxide, 1 part; metallic zinc. 1 part; and a trace of mm sulphate.

4. A carbon remover comprising in combination sulphur, zinc oxide, metallic zinc, zinc sulphate and magnesium.

5. A carbon remover comprising in com- 3 parts; zinc oxide.

1 to 3 parts; metallic zinc. 1 to 3 parts; magnesium, and a trace of zinc sulphate.

6. A carbon remover comprising in combination sulphur, zinc oxide, metallic zinc, Zinc sulphate and an oxidizing agent.

7. carbon remover comprising a strip of sheet zinc in the form of a coil incrusted with a composition composed of sulphur. zinc oxide and zinc sulphate, melted and cooled while in contact with the metalliczinc.

In testimony whereof we have afiixed our signatures.

WILLIAM F. BRAND. ERNEST O. QUARNS'IROM. 

